. "accepted"@en . "" . "SDN:P07::2NFVC6YY" . "2018-02-12 16:53:18.0" . "SDN:P07::2NFVC6YY" . . "1" . . . "1" . "SDN:P07::2NFVC6YY" . . "false" . "2018-02-12 16:53:18.0" . "The surface called \"surface\" means the lower boundary of the atmosphere. \"Content\" indicates a quantity per unit area. \"Radioactivity\" means the number of radioactive decays of a material per second. \"Cm\" means the element \"curium\" and \"245Cm\" is the isotope \"curium-245\" with a half-life of 3.40e+06 days."@en . "surface_radioactivity_content_of_245Cm"@en . .